What two factors of a molecule determine whether or not it can cross the membrane

A complex carbohydrate that can be formed by the linking of simple sugar is

What is meant by "nutrient limitation"?

One of the ways humans can preserve biodiversity is blank test answers

When does the cell have to use active transport? A. when the cell is low on energyB. when the cell is in a highly concentrated solutionC. to move molecules across the membrane quicklyD. to move molecules across the membrane against a gradient

What does niche mean

What happens directly afther prophase?

What equation is used to determine the gene frequency for a given gene in a population?

During photosynthesis, oxygen is converted to carbon dioxide. True Or False?

What characteristic of Charales would enable them to survive a dry spell? sperm with flagella phragmoplasts sporopollenin chlorophyll a

Many Head Start programs have a community aide who A. tutors at-risk children in the home. B. gives families the money they need to survive. C. connects families to community resources they need. D. represents families at family/teacher conferences.